*{
    padding: 0;
    margin: 0;
}
input::-webkit-input-placeholder{
    font-size: 12px;
}
.exchange{
    background: url("../img/background.png") no-repeat;
    height: 800px;
}
.center{
    text-align: center;
}
.ExchTitle{
    margin-top: 18px;
    width: 50vw;
}
.body{
    background: url("../img/exchangePage/body-bg.png") no-repeat 0 35px;
    background-size: 100%;
}
.body-exchange{
    background: url("../img/exchangePage/exchange-bg.png") no-repeat center;
    background-size: 70%;
    height: 40vw;
    /*margin-top: 30px*/
}
.choice{
    position: absolute;
    border-radius: 50%;
    background-color: #D7182A;
    width: 25px;
    height: 25px;
    text-align: center;
    color: white;
    top: 50vw;
    cursor: pointer;
}
.prize-one{
    position: relative;
}
.prize-two{
    position: relative;
    float: right;
}
.choice-left{
    left: 26.5vw;
}
.choice-right{
    right: 26.5vw;
}
.yes{
    width: 6vw;
    vertical-align: -6px;
}
.user-name{
    position: relative;
    top: -2.5vw;
    left: -50vw;
    height: 6vw;
    width: 21vw;
    line-height: 7vw;
    outline: none;
    border: 0;
}
.user-tel{
    position: relative;
    top: -7.5vw;
    left: 13.5vw;
    height: 6vw;
    width: 60vw;
    line-height: 7vw;
    outline: none;
    border: 0;
}
.user-address{
    position: relative;
    top: -8.5vw;
    left: 27.5vw;
    height: 7vw;
    width: 65vw;
    line-height: 7vw;
    outline: none;
    border: 0;
}
.name-bg{
    width: 54%;
    height: 7.5vw;
    margin: 28vw 7vw 0;
}
.name{
    width: 7vw;
    position: relative;
    top: -1.5vw;
    left: -56vw;
}
.tel-bg{
    width: 86%;
    margin: 5vw 7vw 0;
}
.tel{
    width: 13vw;
    position: relative;
    top: -7vw;
    left: 10vw;
}
.address{
    width: 86%;
    margin: 0 7vw;
}
.sure{
    cursor: pointer;
    width: 40vw;
    margin: 4vw 30vw 21vw;
}
.succeed{
    display: none;
    text-align: center;
}
.succeed img:last-child{
    width: 20vw;
    position: relative;
    top: -11vw;
}
.go-back{
    position: relative;
    float: left;
    top: 3vw;
    left: 4vw;
}
/*奖品样式*/
.prize-10{
    width: 34vw;
    left: 13vw;
    top: 11vw;
}
.prize-qq,.prize-30{
    width: 34vw;
    right: 14vw;
    top: 11vw;
}
.prize-star{
    width: 17vw;
    left: 21vw;
    top: 5vw;
}
.prize-pen{
    width: 30vw;
    left: 16vw;
    top: 7vw;
}
.prize-lighter{
    width: 21vw;
    right: 20vw;
    top: 7vw;
}
.prize-headset{
    width: 17vw;
    left: 20vw;
    top: 0;
}
.prize-mouse{
    width: 36vw;
    right: 12vw;
    top: 10vw;
}